Fairfield Road Segment 3D May 2024

Access APIMetadata Portal Metadata InformationContent TitleFairfield Road Segment 3D May 2024Content TypeScene Layer/Scene Layer PackageDescriptionNSW Transport Theme Road Segment is a line feature class representing a section of road having common attributes and terminating at its physical and or at an intersection with another road at the same grade (same level). Its position is determined by the methodology used to input into the Topographic Database. Common methods of input include GPS, traced from the cadastre or traced from an orthorectified image.Data included in Road Segments includes:Vehicular TrackPathwayContinuity LineStandard Road On-off RampDual CarriagewayInitial Publication Date01/05/2024Data Currency01/05/2024Data Update FrequencyOtherContent SourceData provider filesFile TypeScene Layer Package (*.slpk)AttributionData Theme, Classification or Relationship to other DatasetsTransport Theme of the NSW Foundation Spatial Data FrameworkAccuracyThe dataset maintains a positional relationship to, and alignment with, the Lot and Property digital datasets. The Lot and Property data was captured by digitising the best available cadastral mapping at a variety of scales and accuracies, ranging from 1:500 to 1:250 000 according to the National Mapping Council of Australia, Standards of Map Accuracy (1975). Therefore, the position of the feature instance will be within 0.5mm at the map scale for 90% of the well-defined points. That is 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:00000 = 50m. A program of positional upgrade (accuracy improvement) is currently underway. Feature heights have been derived from LiDAR elevation sources including 1m and 2m DEMS. The data used to create the DEMs have an accuracy of 0.3m (95% Confidence Interval) vertical and 0.8m (95% Confidence Interval) horizontal. The features vertical accuracy is also a function of its horizon.Spatial Reference System (dataset)WGS84Spatial Reference System (web service)EPSG:4326WGS84 Equivalent ToGDA2020Spatial ExtentContent LineageData ClassificationUnclassifiedData Access PolicyOpenData QualityTerms and ConditionsCreative CommonsStandard and SpecificationData CustodianSpatial Services | Department of Customer ServicesPoint of [e-mail] AggregatorSpatial Services | Department of Customer ServicesData DistributorSpatial Services | Department of Customer ServicesAdditional Supporting InformationOpen Geospatial Consortium (OGC) implemented and compatible for the consumption by common GIS platforms. Available as either cache or non-cache, depending on client use or requirement.TRIM Number

访问API元数据门户元数据信息
## 内容标题：费尔菲尔德路段3D模型 2024年5月
## 内容类型：场景图层/场景图层包（Scene Layer/Scene Layer Package）
## 数据集描述：
新南威尔士州（NSW）交通主题路段为线要素类，指代具备共同属性、终止于物理端点或与同等级（同一水平面）其他道路相交的道路路段。其空间位置由输入至地形数据库的方法确定，常用输入手段包括全球定位系统（GPS）、从地籍数据追踪或从正射影像追踪。路段包含的数据集类型如下：机动车通行路段、步道、连续线、标准道路进出口匝道、双向分隔车道。
## 首次发布日期：2024/05/01
## 数据现势性：2024/05/01
## 数据更新频率：其他
## 数据来源：数据提供方文件
## 文件类型：场景图层包（Scene Layer Package，*.slpk）
## 归属说明：
数据主题、分类及与其他数据集的关联关系：新南威尔士州基础空间数据框架（NSW Foundation Spatial Data Framework）交通主题。
## 精度说明：
本数据集与地块与房产数字数据集保持空间位置关联与对齐一致性。地块与房产数据通过数字化多比例尺、多精度的最优地籍测绘数据采集，比例尺范围为1:500至1:250000，符合澳大利亚国家测绘委员会1975年《地图精度标准》（National Mapping Council of Australia, Standards of Map Accuracy (1975)）。据此，90%的明确定义点位的位置误差不超过对应地图比例尺下的0.5毫米，即1:500对应0.25米、1:2000对应1米、1:4000对应2米、1:25000对应12.5米、1:50000对应25米、1:100000对应50米。当前正实施点位精度提升计划。
要素高程源自激光雷达（LiDAR）高程数据源，包含1米与2米分辨率的数字高程模型（DEM）。用于生成DEM的数据垂直精度为0.3米（95%置信区间），水平精度为0.8米（95%置信区间）。要素的垂直精度同时受其视域范围影响。
## 数据集空间参考系：WGS84
## Web服务空间参考系：EPSG:4326（WGS84等效基准）
## WGS84等效基准：GDA2020
## 空间范围：无具体内容
## 数据谱系：无具体内容
## 数据分类：未分类
## 数据访问政策：开放
## 数据质量条款与条件：知识共享（Creative Commons）标准与规范
## 数据保管方：空间服务部 | 新南威尔士州客户服务部
## 联系方式：[e-mail]
## 数据聚合方：空间服务部 | 新南威尔士州客户服务部
## 数据分发方：空间服务部 | 新南威尔士州客户服务部
## 附加支持信息：
本数据集已实现开放地理空间联盟（OGC，Open Geospatial Consortium）标准，兼容常见地理信息系统（GIS）平台使用。可根据客户使用场景或需求，以缓存或非缓存形式提供。
## TRIM编号：无具体内容